Traveling vehicle
US-2024208322-A1 · Jun 27, 2024 · US
Vehicle drive device
US9493062B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9493062-B2 |
| Application number | US-201214374601-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 3, 2012 |
| Priority date | Feb 3, 2012 |
| Publication date | Nov 15, 2016 |
| Grant date | Nov 15, 2016 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A vehicle drive device comprising: an engine, a first electric motor, and a second electric motor disposed on a first axis; a first axis output portion outputting power of the first axis; a second axis input portion that is an input portion of a second axis to which power from the first axis output portion is input, the second axis being parallel to the first axis; a second axis output portion outputting power of the second axis; a transmission changing speed between the second axis input portion and the second axis output portion, the transmission being disposed on the second axis; and a third axis input portion that is an input portion of a third axis to which power from the second axis output portion is input, the third axis being parallel to the first axis, the first axis output portion, the second axis input portion, the second axis output portion, and the third axis input portion all being disposed between the first electric motor and the second electric motor in a direction of the first axis, the transmission including at least a first planetary gear device and a second planetary gear device, the second axis input portion and the second axis output portion being disposed between the first planetary gear device and the second planetary gear device in a direction of the second axis.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vehicle drive device comprising: an engine, a first electric motor, and a second electric motor disposed on a first axis; a first axis output portion outputting power of the first axis; a second axis input portion that is an input portion of a second axis to which power from the first axis output portion is input, the second axis being parallel to the first axis; a second axis output portion outputting power of the second axis; a transmission changing speed between the second axis input portion and the second axis output portion, the transmission being disposed on the second axis; and a third axis input portion that is an input portion of a third axis to which power from the second axis output portion is input, the third axis being parallel to the first axis, the first axis output portion, the second axis input portion, the second axis output portion, and the third axis input portion all being disposed between the first electric motor and the second electric motor in a direction of the first axis, the transmission including at least a first planetary gear device and a second planetary gear device, the second axis input portion and the second axis output portion being disposed between the first planetary gear device and the second planetary gear device in a direction of the second axis. 2. The vehicle drive device of claim 1 , wherein the power from the first axis output portion is transmitted to the second axis input portion via a first intermediate transmission member disposed on a first intermediate axis parallel to the first axis, and wherein the power from the second axis output portion is transmitted to the third axis input portion via a second intermediate transmission member disposed on a second intermediate axis parallel to the first axis. 3. The vehicle drive device of claim 1 , wherein a second axis input supporting portion supporting the second axis input portion rotatably around the second axis is disposed radially inside a second axis output supporting portion supporting the second axis output portion rotatably around the second axis. 4. The vehicle drive device of claim 1 , wherein power is transmitted with speed reduced from the first axis to the second axis, and wherein engagement positions of engagement elements included in the transmission are disposed radially outside the first planetary gear device or the second planetary gear device. 5. The vehicle drive device of claim 1 , wherein on the first axis, a third planetary gear device is disposed that is interposed between the engine and the first axis output portion and that has a differential state controlled by the first electric motor, and wherein the third planetary gear device and the first electric motor act as an electric continuously variable transmission. 6. The vehicle drive device of claim 1 , wherein on the first axis, a fluid transmission device is disposed that has an input-side rotating member coupled to the engine and the first electric motor and an output-side rotating member coupled to the first axis output portion and the second electric motor, and wherein the fluid transmission device and the first electric motor act as an electric continuously variable transmission. 7. The vehicle drive device of claim 2 , wherein on the second intermediate axis, a parking lock mechanism is disposed that mechanically disables rotation of drive wheels. 8. The vehicle drive device of claim 1 , wherein the first axis output portion, the second axis input portion, the second axis output portion, and the third axis input portion are positioned relative to the first electric motor and the second electric motor, without any of the first axis output portion, the second axis input portion, the second axis output portion and the third axis input portion overlapping with the first and second electric motors in a radial direction that is perpendicular to the direction of the first axis. 9. The vehicle drive device of claim 1 , wherein the second axis input portion is positioned relative to the second axis output portion, such that at least a portion of a second axis input portion overlaps with the second axis output portion in a radial direction that is perpendicular to the direction of the second axis.
Assignees
Inventors
Classifications
Cross-Sectional Technologies · mapped topic
Differential gearing distribution type · CPC title
the gear ratios comprising four forward speeds · CPC title
Cross-Sectional Technologies · mapped topic
characterised by the number of reverse speeds · CPC title
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Frequently asked questions
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- What does patent US9493062B2 cover?
- A vehicle drive device comprising: an engine, a first electric motor, and a second electric motor disposed on a first axis; a first axis output portion outputting power of the first axis; a second axis input portion that is an input portion of a second axis to which power from the first axis output portion is input, the second axis being parallel to the first axis; a second axis output portion …
- Who is the assignee on this patent?
- Okuda Koichi, Funahashi Makoto, Tabata Atsushi, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification B60K6/365. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 15 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).